v1 = 1 or 3
v2 = 1 and 3
v3 = 0 and 2 and 1
v4 = 0 and 2 or 1
v5 = 0 and 2 or 1 or 3
v6 = 0 or False and 1

print(v1)
print(v2)
print(v3)
print(v4)
print(v5)
print(v6)

"""
    运算顺序：() => not => and => or
    a or b:
        如果a表示False，那么结果就是b
        如果a表示True，那么结果就是a
    a and b:
        如果a表示False，那么结果就是False
        如果a表示True，那么结果就是b
"""
